There has been an outbreak of fire at one of the two buildings of the Abuja World Trade Centre.
Both buildings have more than 30 floors.
The centre is located in the Central Business District (CBD) in the federal capital territory (FCT).
Smoke could be seen billowing from one of the buildings on Monday.
The cause of the fire is not yet known.
Also, the extent of damage could not be ascertained and there is no report yet that anyone was injured in the fire.
In a tweet, the Federal Fire Service said some of its officials are already at the scene of the incident.